312478532 has 12 divisors (see below), whose sum is σ = 548462460. Its totient is φ = 155774976.

The previous prime is 312478519. The next prime is 312478577. The reversal of 312478532 is 235874213.

It can be written as a sum of positive squares in 2 ways, for example, as 179399236 + 133079296 = 13394^2 + 11536^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312478492 and 312478501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114557 + ... + 117252.

It is an arithmetic number, because the mean of its divisors is an integer number (45705205).

Almost surely, 2^312478532 is an apocalyptic number.

It is an amenable number.

312478532 is a deficient number, since it is larger than the sum of its proper divisors (235983928).

312478532 is a wasteful number, since it uses less digits than its factorization.

312478532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232150 (or 232148 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 312478532 is about 17677.0623124998. The cubic root of 312478532 is about 678.5888642949.

The spelling of 312478532 in words is "three hundred twelve million, four hundred seventy-eight thousand, five hundred thirty-two".